EP1406348A2 - Antenne à double polarisation - Google Patents

Antenne à double polarisation Download PDF

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Publication number
EP1406348A2
EP1406348A2 EP03292171A EP03292171A EP1406348A2 EP 1406348 A2 EP1406348 A2 EP 1406348A2 EP 03292171 A EP03292171 A EP 03292171A EP 03292171 A EP03292171 A EP 03292171A EP 1406348 A2 EP1406348 A2 EP 1406348A2
Authority
EP
European Patent Office
Prior art keywords
antenna
walls
antenna according
wall
transverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03292171A
Other languages
German (de)
English (en)
Other versions
EP1406348A3 (fr
Inventor
Victor Aleksandrovich Sledkov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commscope Technologies LLC
Original Assignee
Andrew LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andrew LLC filed Critical Andrew LLC
Publication of EP1406348A2 publication Critical patent/EP1406348A2/fr
Publication of EP1406348A3 publication Critical patent/EP1406348A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Definitions

  • the present invention relates to a dual polarised antenna.
  • US6023244 describes a microstrip antenna with a metal frame arranged on the ground plane in order to control the size and direction of the antenna lobe.
  • the walls forming the metal frame are electrically interconnected at least along one edge, which forms a line along the metal frame.
  • US6028563 describes a dual polarised antenna with an isolation device.
  • isolation device including an isolation tree or bar, isolation rails, thin isolation rods or wires, or an isolation strip.
  • WO98/36472 describes a dual polarised antenna with sidewalls in various alternative configurations.
  • WO02/50953 describes a dual polarised antenna including a pair of side walls running along the length of the antenna, and isolation devices (either rods or walls) between the antenna elements. Rectangular tabs project inwardly towards the antenna elements from the top edges of the side walls.
  • US6072439 describes a dual polarised antenna with a pair of C-shaped side walls, which are fastened to a backplane by screws.
  • the preferred embodiments provide a dual polarised antenna including two or more modules arranged along an antenna axis, each module including a radiating element, and four conductive watts which together form a frame around the radiating element, each wall including a distal edge and a pair of side edges, wherein the side edges of the walls meet, but do not touch, at respective comers of the frame.
  • each wall taper inwardly towards a respective distal edge.
  • the walls taper along their entire length: in another the walls are parallel in a proximal portion of the walls, and taper in a distal portion.
  • the walls each have a proximal base, which together form an outer border, wherein the distal edges of the walls together form an inner border, and wherein the area within the inner border is smaller than the area within the outer border.
  • the side edges of the walls may be separated at the corners of the frame by respective air gaps, or insulating fillers may be provided.
  • the radiating element may be a patch element, or any other element such as a dipole.
  • the preferred embodiments also provide a dual polarised antenna including two or more radiating elements arranged along an antenna axis; a plurality of conductive side walls running substantially parallel with the antenna axis; and one or more conductive wall assemblies, each wall assembly being arranged between a pair of radiating elements, wherein the or each wall assembly is substantially U-shaped as viewed in a cross-section taken along the antenna axis.
  • the U-shaped wall assembly can be easily installed on an antenna tray by coupling the base of the "U” to the antenna tray, for instance by way of attachment pins.
  • the preferred embodiments also provide a dual polarised patch antenna including two or more radiating patch elements arranged along an antenna axis, each radiating patch element having first and second opposite side edges which run substantially parallel with the antenna axis; a plurality of conductive side walls running substantially parallel with the antenna axis; and one or more conductive isolating elements, each isolating element being arranged between a pair of radiating patch elements.
  • the isolating element(s) may be in any form, such as a conductive wall running substantially transverse to the antenna axis, an axial strip and/or a transverse strip.
  • a dual polarised antenna including two or more radiating patch elements arranged along an antenna axis; one or more axial isolating elements, each axial isolating element being arranged between a pair of radiating patch elements and including an elongate conductive member arranged with its length substantially parallel with the antenna axis; and one or more transverse isolating elements, each transverse isolating element being arranged between a pair of radiating patch elements and including an elongate conductive member arranged with its length substantially transverse with the antenna axis, wherein the axial and transverse isolating elements do not touch each other.
  • the preferred embodiments also provide a dual polarised antenna including two or more radiating elements arranged along an antenna axis; and a plurality of planar conductive side walls running substantially parallel with the antenna axis, wherein each side wall has a projection extending from an upper edge of the side wall, each projection being positioned opposite to a centre of a respective radiating element, and wherein each projection lies in the plane of its respective side wall.
  • the preferred embodiments also provide a dual polarised antenna including a radiating element; a ground plane; and a pair of conductive walls arranged on opposite sides of the radiating element, each wall subtending an acute angle with the ground plane, wherein the ground plane and conductive walls are formed from a single sheet of conductive material.
  • a panel antenna 1 (dual slant, ⁇ 45° polarisation) is shown in Figures 1 to 3. Certain elements of the finished article (for instance the radome) are omitted from the figures for clarity.
  • the antenna is shown in Figures 1a and 1b in a horizontal orientation, although in use the antenna is generally oriented vertically with the patches directed outwardly.
  • the terms "upper”, “lower” etc will be used with reference to the orientation of Figure 1.
  • Figure 1a shows the upper items of the antenna in exploded isometric form
  • Figure 1b shows the remaining lower items of the antenna in exploded isometric form.
  • Patch tray 10 is shown in both Figures 1a and 1b to provide a link between the two figures.
  • the upper patch elements 2 are mounted on lower patch elements 3 by insulating spacers 4.
  • the upper patch elements 2 are formed from square sheets with cut-off corners to provide the eight-sided shape shown.
  • the lower patch elements 3 are provided with circular central apertures 5, and are mounted on patch tray 10 via insulating spacers 11.
  • the base of the patch tray 10 acts as a ground plane.
  • a pair of end walls 12 are mounted at opposite ends of the patch tray 10, and three double wall assemblies 13 are provided, each positioned between a respective pair of patch assemblies.
  • the double wall assemblies 13 are generally U-shaped in cross-section and have a base 14, and a pair of outwardly angled walls 16 which lie transverse to the antenna axis.
  • the walls 12,16 have angled side edges (one of which is labelled 25 in Figures 3 and 4) and taper from a relatively broad base to a relatively narrow distal upper edge 26.
  • the patch tray 10 is formed from a single planar sheet of aluminium, which is folded at the edge to form side walls 30 with tabs 32.
  • Four sets of apertures 31 are punched out of the base of the patch tray 10, aligned with each patch assembly. Off-cuts are provided between the side walls 30 so as to provide angled side edges (one of which is labelled 27 in Figures 3 and 4).
  • the side walls 30 taper from a relatively broad base to a relatively narrow distal upper edge 28.
  • the rectangular tabs 32 project from the upper edges 28 and lie in the same plane as the side walls 30.
  • the side walls 30 and transverse walls 12,16 substantially enclose the patch assemblies in a tapered box-like frame, as shown most clearly in the plan view of Figure 3.
  • the walls do not completely enclose the patch assemblies.
  • the side edges 25,27 of the walls at the corner of the square frame do not touch.
  • the air gap 42 between the edges 25,27 tapers slightly as shown in Figures 3 and 4.
  • the edges 25,27 may be parallel.
  • Insulating spacers may be mounted in the air gap 42 if desired, although preferably the air gap 42 is left open.
  • the sheet is not completely cut-away between the side walls 30. Instead, a low side wall 29 is left between the side walls 30.
  • the side wall 29 provides mechanical stiffening of the patch tray 10 to minimise flexing.
  • the apertures 31 are arranged in a cross-configuration with the apertures oriented at ⁇ 45° to the antenna axis. This causes the patches to emit and receive radiation with the orientation of the dominant components of the electric fields being at ⁇ 45° to the antenna axis.
  • PCB's 40 are mounted on the rear of the patch tray 10.
  • shields 50 are mounted to the underside of PCB's 40. The shields direct radiation from apertures 31 towards the patch assemblies.
  • phase shifter support 60 is mounted to a back tray 70 by clamp members 71.
  • phase shifter assembly 61 is mounted to the rear of the phase shifter support 60.
  • Isolating assemblies are positioned between each patch assembly, each isolating assembly comprising a transverse strip 20 and an axial strip 21.
  • the isolating assemblies are mounted by insulating studs 33, 34 shown in detail in Figure 4.
  • the studs are omitted from Figures 1-3 for clarity.
  • the axial strips 21 have downwardly bent arms 22, which are mounted on walls 16 by insulating studs 33, which pass through apertures in the arms 22 and walls 16.
  • the transverse strips 20 have arms 23 (shown in the plan view of Figure 3) which are mounted to the base 14 of the double wall assembly 13.
  • An additional insulating stud 34 mounts the longitudinal strip 21 on the transverse strip 23.
  • the stud 34 passes through apertures in the strips 21,23.
  • the isolating assemblies improve the isolation between the +45° and the -45° antenna ports.
  • the angle between the inner faces of transverse walls 12 and 16, and the base of tray 10, is approximately 56°.
  • the angle between the side walls 30, and the base of tray 10, is approximately 58°.
  • the upper edges 26 of transverse walls 16 are higher above ground plane 10 than the upper edges 28 of side walls 30.
  • the distal edges 25,28 of the walls form a rectangular inner border around the patch assembly.
  • the bases of the walls form a rectangular outer border.
  • the area within the inner border is smaller than the area within the outer border.
  • a PCB 40 is shown in detail in Figures 5a and 5b.
  • Figure 5b shows the lower side of the PCB (that is, the side opposite to the patches) and
  • Figure 5a shows the upper side of the PCB (that is, the same side as the patches).
  • the PCB comprises a Taconic® substrate with copper layers on both faces. The copper on the lower face is etched away to leave the microstrip feedline network shown in Figure 5b.
  • Feedline 45 is coupled to feedlines 46,47 via junction 48.
  • Feedline 52 is coupled to feedlines 53,54 via junction 55.
  • the copper on the upper face is etched away in four regions to form "dumb-bell" shaped slots 56 shown in Figure 5a.
  • the upper face carries a thin layer of adhesive dielectric, which adheres the PCB 40 to the base of the patch tray 10, providing a capacitive connection between the copper on the upper face of the PCB, and the aluminium patch tray 10.
  • the slots 56 are positioned in line with the apertures 31 in the base of the patch tray 10.
  • the feedlines 46,47,53,54 pass across the central stem portion of the "dumb-bell" shaped slots 56.
  • the feedlines couple energy into slots 56, which in turn couple the energy into apertures 31, which in turn couple the energy to the upper and lower patches 2,3.
  • the slots 56 (and thus the patches 2,3) radiate energy in two polarisations at 45 degrees to the antenna axis.
  • All parts of the antenna are formed from aluminium except for the PCB.
  • the off-cuts between the side walls 30 improve the isolation.
  • the off-cuts enable energy to radiate outwardly, thus preventing radiation from one set of apertures 31 from coupling with a neighbouring patch assembly.
  • the off-cuts also enable the U-shaped assemblies 13 to be inserted easily.
  • the walls 16 between the patch assemblies improve the isolation.
  • the patches 2,3 have sides, which lie parallel with the side walls 30. This provides two advantages in comparison with conventional antennas in which the square patches are oriented with their diagonals aligned with the antenna axis (see for instance W002/50953). Firstly, the antenna has a greater beamwidth because the dimension of the radiating element in the horizontal plane (perpendicular to the antenna axis) is lower. Secondly, the relatively constant gap between the sides of the patches and the side walls results in improved repeatability of the electrical performance of the antenna.
  • the antenna is designed to operate in the 800 to 960 MHz frequency band, although it could be designed to work in other frequency bands. isolation between polarisations is more than 30 dB for electrical downtilt angles from 1° to 10°.
  • the height of the antenna above the base of the patch tray 10 is 60 mm. This is a lower profile than for any other existing radiator with a 90° 3dB beamwidth.
  • Figures 6 to 8 show an alternative antenna. Reference numerals are repeated for identical elements shown in Figures 1 to 4.
  • the side walls have upright proximal portions 80 folded at right angles to the ground plane with parallel side edges 81.
  • the side walls also have distal portions 82 folded parallel to the ground plane, with side edges 83, which taper toward distal edges 84.
  • the transverse walls are similar in construction, with upright proximal portions 90 folded at right angles to the ground plane with parallel side edges 91, and distal portions 92 folded parallel to the ground plane with side edges 93 which taper toward distal edges 94.
  • a small parallel-sided air gap is left between edges 81,91 and edges 83,93.
  • the axial strips 21 of Figures 1 to 6 are replaced by axial strips 100 with downwardly bent arms 101.
  • the arms 101 are mounted on proximal portions 90 of the transverse walls by insulating studs (not shown), which pass through apertures in the arms 101 and wall portion 90.
  • the arms 101 may be omitted and the axial strips 100 mounted on the distal wall portions 92.
  • the drawings refer to an antenna with 4 radiating elements. However, any number of elements may be used, for instance 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP03292171A 2002-09-25 2003-09-03 Antenne à double polarisation Withdrawn EP1406348A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/254,211 US20040056818A1 (en) 2002-09-25 2002-09-25 Dual polarised antenna
US254211 2002-09-25

Publications (2)

Publication Number Publication Date
EP1406348A2 true EP1406348A2 (fr) 2004-04-07
EP1406348A3 EP1406348A3 (fr) 2004-06-09

Family

ID=31993295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292171A Withdrawn EP1406348A3 (fr) 2002-09-25 2003-09-03 Antenne à double polarisation

Country Status (7)

Country Link
US (1) US20040056818A1 (fr)
EP (1) EP1406348A3 (fr)
JP (1) JP2004120760A (fr)
KR (1) KR20040027389A (fr)
CN (1) CN1497781A (fr)
AU (1) AU2003248287A1 (fr)
TW (1) TW200405616A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2595243A1 (fr) * 2011-11-15 2013-05-22 Alcatel Lucent Antenne à large bande
WO2013092928A1 (fr) * 2011-12-21 2013-06-27 Centre National De La Recherche Scientifique (C.N.R.S) Antenne élémentaire et antenne réseau mono ou bidimensionnelle correspondante
WO2014093040A1 (fr) * 2012-12-14 2014-06-19 Alcatel Lucent Systèmes d'antenne en ligne à large bande et procédés associés
RU2675402C2 (ru) * 2014-09-11 2018-12-19 3М Инновейтив Пропертиз Компани Устройство для защиты органов слуха с встроенной антенной приемника частотно-модулированных сигналов

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150150B4 (de) * 2001-10-11 2006-10-05 Kathrein-Werke Kg Dualpolarisiertes Antennenarray
CA2422345A1 (fr) * 2002-03-27 2003-09-27 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Her Majesty's Canadian Government Systeme d'antenne en anneau non plan
TWM249231U (en) * 2003-09-30 2004-11-01 Accton Technology Corp Antenna reflection structure
EP1628361A1 (fr) 2004-08-16 2006-02-22 Accton Technology Corporation Structure d'un réflecteur d'antenne
EP1667278A1 (fr) * 2004-11-23 2006-06-07 Alcatel Antenne pour Station de base à éléments radiateur à double polarisation et à réflecteur profilé
KR100695329B1 (ko) 2004-12-21 2007-03-15 한국전자통신연구원 Ｈ형 모노폴 격리 안테나
KR100695328B1 (ko) 2004-12-21 2007-03-15 한국전자통신연구원 초격리 안테나
US7681834B2 (en) * 2006-03-31 2010-03-23 Raytheon Company Composite missile nose cone
JP2008199113A (ja) * 2007-02-08 2008-08-28 Toshiba Corp マイクロストリップアンテナおよびマイクロストリップアンテナ組立体
CN101663795A (zh) * 2007-04-27 2010-03-03 日本电气株式会社 具有金属壁的贴片天线
US8354972B2 (en) * 2007-06-06 2013-01-15 Fractus, S.A. Dual-polarized radiating element, dual-band dual-polarized antenna assembly and dual-polarized antenna array
GB0712787D0 (en) * 2007-07-03 2007-08-08 Antenova Ltd Antenna module with adjustable beam and polarisation characteristics
KR100855514B1 (ko) * 2008-02-18 2008-09-01 주식회사 선우커뮤니케이션 멀티밴드 안테나
WO2010018896A1 (fr) * 2008-08-11 2010-02-18 Ace Antenna Corp. Antenne équipée d’un élément de découplage
KR100945547B1 (ko) * 2009-06-29 2010-03-08 주식회사 선우커뮤니케이션 멀티-밴드 안테나 장치
CN102498615A (zh) * 2009-08-25 2012-06-13 莱尔德技术股份有限公司 具有用于减小互耦合的隔阻箱的天线阵列
WO2011026034A2 (fr) 2009-08-31 2011-03-03 Andrew Llc Ensemble antenne cellulaire de type modulaire
KR101123767B1 (ko) * 2009-12-29 2012-03-16 주식회사 이엠따블유 내장형 안테나의 결착을 위한 돌기 구조, 이를 포함하는 내장형 안테나 조립체 및 그 제조 방법
JP5555087B2 (ja) * 2010-07-30 2014-07-23 株式会社豊田中央研究所 レーダ装置
TWI474560B (zh) * 2011-01-10 2015-02-21 Accton Technology Corp 非對稱偶極天線
CN103367875B (zh) * 2012-11-20 2015-05-20 漯河职业技术学院 半波阵子阵元及其组成的微带阵列天线
CN104868228B (zh) * 2014-02-25 2018-05-11 华为技术有限公司 双极化天线及天线阵列
CN105609938A (zh) * 2016-01-19 2016-05-25 李万 一种宽频带天线
GB2548115B (en) * 2016-03-08 2019-04-24 Cambium Networks Ltd Antenna array assembly with a T-shaped isolator bar
US10062965B2 (en) * 2016-10-14 2018-08-28 Movandi Corporation Raised antenna patches with air dielectrics for use in large scale integration of phased array antenna panels
CN106450755B (zh) * 2016-11-22 2019-04-19 西北工业大学 缝隙阵列加载4单元多频高隔离度微带mimo天线
DE102018110486A1 (de) * 2018-05-02 2019-11-07 Kathrein Se Mehrfachantennensystem für Mobilfunk
US12034218B2 (en) 2019-03-26 2024-07-09 Telefonaktiebolaget Lm Ericsson (Publ) Frasera Antenna Radiator (FAR) for 5G array antennas

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573914A (en) * 1949-07-30 1951-11-06 Rca Corp Antenna system
CA2164669C (fr) * 1994-12-28 2000-01-18 Martin Victor Schneider Antenne a plaque multi-element miniature
SE508537C2 (sv) * 1997-02-14 1998-10-12 Ericsson Telefon Ab L M Dubbelpolariserad antenn för mottagning och sändning av elektromagnetiska signaler
KR100269584B1 (ko) * 1998-07-06 2000-10-16 구관영 쵸크 반사기를 갖는 저 사이드로브 이중 편파 지향성 안테나
AU2002216506A1 (en) * 2000-12-21 2002-07-01 Andrew Corporation Dual polarisation antenna
US6697029B2 (en) * 2001-03-20 2004-02-24 Andrew Corporation Antenna array having air dielectric stripline feed system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2595243A1 (fr) * 2011-11-15 2013-05-22 Alcatel Lucent Antenne à large bande
WO2013072023A1 (fr) * 2011-11-15 2013-05-23 Alcatel Lucent Antenne à bande large
US9287617B2 (en) 2011-11-15 2016-03-15 Alcatel Lucent Wideband antenna
WO2013092928A1 (fr) * 2011-12-21 2013-06-27 Centre National De La Recherche Scientifique (C.N.R.S) Antenne élémentaire et antenne réseau mono ou bidimensionnelle correspondante
FR2985096A1 (fr) * 2011-12-21 2013-06-28 Centre Nat Rech Scient Antenne elementaire et antenne reseau bidimensionnelle correspondante
US9711867B2 (en) 2011-12-21 2017-07-18 Centre National De La Recherche Scientifique (C.N.R.S) Basic antenna, and corresponding one- or two-dimensional array antenna
WO2014093040A1 (fr) * 2012-12-14 2014-06-19 Alcatel Lucent Systèmes d'antenne en ligne à large bande et procédés associés
US9219316B2 (en) 2012-12-14 2015-12-22 Alcatel-Lucent Shanghai Bell Co. Ltd. Broadband in-line antenna systems and related methods
RU2675402C2 (ru) * 2014-09-11 2018-12-19 3М Инновейтив Пропертиз Компани Устройство для защиты органов слуха с встроенной антенной приемника частотно-модулированных сигналов

Also Published As

Publication number Publication date
JP2004120760A (ja) 2004-04-15
US20040056818A1 (en) 2004-03-25
CN1497781A (zh) 2004-05-19
EP1406348A3 (fr) 2004-06-09
KR20040027389A (ko) 2004-04-01
TW200405616A (en) 2004-04-01
AU2003248287A1 (en) 2004-04-22

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